package com.sky.service.impl;
/*
 * @Author:
 * @Description:
 * @Date:
 * @Others:
 * */

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.DishFlavor;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.DishFlavorMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.result.PageResult;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import lombok.Builder;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
@Slf4j
@Builder
public class DishServiceImpl implements DishService {

        @Autowired
        private DishMapper dishMapper;

        @Autowired
        private DishFlavorMapper dishFlavorMapper;

        @Autowired
        private SetmealDishMapper setmealDishMapper;

        @Override
        @Transactional
        public void saveWithFlavor(DishDTO dishDTO) {
            Dish dish=new Dish();
            BeanUtils.copyProperties(dishDTO,dish);
            dishMapper.insert(dish);

            Long dishId = dish.getId();

            List<DishFlavor> flavors = dishDTO.getFlavors();
            if (flavors != null && flavors.size() > 0) {
                flavors.forEach(dishFlavor -> dishFlavor.setDishId(dishId));
                dishFlavorMapper.insertBatch(flavors);
            }
        }

        @Override
        public PageResult pageQuery(DishPageQueryDTO dishPageQueryDTO) {
            PageHelper.startPage(dishPageQueryDTO.getPage(),dishPageQueryDTO.getPageSize());
            Page<DishVO> page = dishMapper.pageQuery(dishPageQueryDTO);
            return new PageResult(page.getTotal(),page.getResult());
        }

        @Transactional
        @Override
        public void deleteBatch(List<Long> ids) {
          for(Long id:ids){
              Dish dish=dishMapper.getById(id);
              if(dish.getStatus()== StatusConstant.ENABLE){
                  throw new DeletionNotAllowedException(MessageConstant.DISH_ON_SALE);
              }
          }
          List<Long> setmealIds=setmealDishMapper.getSetmealIdsByDishIds(ids);
          if(setmealIds!=null&&setmealIds.size()>0){
              throw new DeletionNotAllowedException(MessageConstant.DISH_BE_RELATED_BY_SETMEAL);
          }

          dishMapper.deleteByIds(ids);
          dishFlavorMapper.deleteByDishIds(ids);

        }

        @Override
        public DishVO getByIdWithFlavor(Long id) {
            Dish dish=dishMapper.getById(id);
            List<DishFlavor> dishFlavors = dishFlavorMapper.getByDishId(id);

            DishVO dishVO=new DishVO();
            BeanUtils.copyProperties(dish,dishVO);
            dishVO.setFlavors(dishFlavors);
            return dishVO;
        }

        @Override
        public void updateWithFlavor(DishDTO dishDTO) {
            Dish dish=new Dish();
            BeanUtils.copyProperties(dishDTO,dish);
            dishMapper.update(dish);

            dishFlavorMapper.deleteByDishId(dishDTO.getId());

            List<DishFlavor> flavors = dishDTO.getFlavors();
            if (flavors != null && flavors.size() > 0) {
                flavors.forEach(dishFlavor -> dishFlavor.setDishId(dishDTO.getId()));
                dishFlavorMapper.insertBatch(flavors);
            }
        }
        @Override
        public List<Dish> list(Long categoryId) {
            Dish dish=Dish.builder()
                    .status(StatusConstant.ENABLE)
                    .categoryId(categoryId)
                    .build();
            return dishMapper.list(dish);
        }


    }


